Railway-spike.



F. P. KOBERT.

RAILWAY SPIKE.

APPLICATION FILED SEPT. 21,1906. 938375. Patented Nov. 2, 1909.

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Q/Vi in eases FRANK P. KOBERT, OF NEW YORK, N. Y.

EAILWATY SPIKE.

I To all whom it may concern:

Be it known that I, FRANK P. citizen of the United States, residing at New York city, in the county ofNew York and State of New York, have invented certain new and useful Improvements in Railway KOBERT, a

Spikes, of which the following is a specification.

This invention relates to driven fastenin s and especially to those fastenings ordinarily employed as railway spikes. i

An object of this invention is to provide a railway spike of substantially the ordinary conformation with improved means for pre venting the accidental displacement of the spike from the tire or sleeper.

A further object of the invention is to provide a railway spike having its vertically pointed end bifurcated and with auxiliary means for expanding the bifurcated ends after the spike is driven into the tie or sleeper.

A further object of the invention is to provide a railway spike having a bifurcated pointed end and with an opening extending longitudinally from the headed end to the bifurcation and with an auxiliary pin arranged and proportioned to be driven into the longitudi [al opening to expand the bi furcat ed end. 1

With these and other objects in view, the invention comprises certain other novel constructions combinations and arrangements of i parts, as will be hereinafter fully described .35 i

and claimed. w 7

In the draw1ngs:F1gure 1 1s a viewoof the improved railway spike in side elevation. Fig. 2 is a longitudinal sectional View of the spike taken on line 22 of Fig. 1. Fig. 3 is a longitudinal, vertical sectional View of the improved spike taken on a line at right angles to the section of Fig. 2 and showing the biturcated ends expanded. Fig. 4 is a View in side elevation of the expan ing in.

Like characters of reference designate corresponding '-parts throughout the several views.

The railway spike. forming the subjectmatter of this application, comprises a spike Specification of Letters Patent.

Patented Nov. a ses.

Application filed. September. 21, 1906. Serial No. 335,615.

body 10 of substantially or approximately the usual and ordinary conformation, provided with ahead 11 at one end and having its opposite o pointed ,end bifurcatedby a slot 12, provi ing fingers 13 and 14. Longitudinally through the body of the spike is projected a hole as 15 ordinarily cylindrical but not limited thereto, as any formof hole will be found satisfactory. About the upper end of the hole 15 and upon the head 11 is provided an annular rib 16 preferably spaced from the hole at a little distance and providing means whereby the spike ma be driven without closing the upper end 0 the hole by upsetting the head of the spike. The

' hole 15 1S projected longitudinally a portion of tlie length .of the spike and ending approximately at the point 17 which divides the upper limit of the bifurcation 12. The lower end of the hole 15 is preferably formed conical or wedge-shaped as shown at 18 so that when the pin 19 is inserted within the hole 15 its pointed or conical end 20 will engage the conical hole 18 to expand the fin ers 13 and 14 as indicated in dotted lines in ig. 1 and in full lines in Fig. 3. The pin 19 is preferably'provided with a head 21 having a flange 22 at its outer edge proportions and positioned to cover the rib 16.

In operation the spike, as a whole, without the pin 19, is driven into the tie or sleeper to engage the base flan e of a rail in substantially the usual an ordinary manner. I

After the spike is driven, as above described,

the pin 19 is driven into and through the hole 15, as indicated in Fig. 3, and whereby the pointed or conical end 20 ofthe pin engages the conical portion 18 of the hole to expand the fingers 13 and 14, and to thereby prevent the removal of the spike from the tie or sleeper and to prevent its working loose under the action of the rail in association 3 therewith.

What I claim is A'railway s ike comprising a body portion with a head ti ereon and havin a longitudinal bore extending throu h thehead and into the body portion, the hen being proyidedpn its upper surface with an annular rib which surrounds the opening in the head, a, pin

having a flanged head and adapted id be iiiname to this specification in tile presence of serted in said longitudinal bgre, and having two subscribing Witnesses. means e06 erating with the ody portion to T lock the sp ike in the Wood, said flanged head FRAB K BOBER 5 of the pincontacting with said annular rib \Vitnessesg on said head, substantially as specified. A. L. VAN Nnss,

In testimony whereof I have signed my MARIE MUNDT. 

